One a white colored wax,you should do as above.
One a red or darker dyed piece.I would make a template out of aluminum and freeze dry it...
Lay the aluminum over then litely trace out the spot under-neath.
Trim it away so the wax stciks out the template...
Freeze spray it,remove template and crinkle it off...
Repeat as needed...When you clean you can actually miss the wax.For time is morei n your favor.As they use there sofa,it will come off more and more.Till just a bit is left.Just advise them if you see it flake off,remove it from the sofa areas. No need to respread.
If on a cushion area ,that is accessible through a zipper .You can pour boiling water on the inner side(side never used)to a vacuum tool on the outside.
Pour and pour till as much is gone.Then if need be use a dye remover for remaining dye left on fabric...
But remember microfiber is very heat sensitive so use of an iron.Would only be utilized by the most skillfull here.You would have to wet surrounding areas well.The transfer off. Using tip of iron only...
Best of luck...Caes-08...